/* ================================================
   Mindlink AI Interpreter v2.1 — Stylesheet
   Mindlink Resources | mindlinkresources.com
   Full branding + FERPA compliance UI
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --ml-primary:     #0B2E4F;
    --ml-accent:      #1B98D4;
    --ml-highlight:   #00B7C3;
    --ml-bg:          #FFFFFF;
    --ml-bg-alt:      #F4F7FA;
    --ml-bg-warm:     #FAFBFD;
    --ml-text:        #1A1A2E;
    --ml-text-light:  #6B7280;
    --ml-text-muted:  #9CA3AF;
    --ml-border:      #E2E6EC;
    --ml-success:     #10B981;
    --ml-warning:     #F59E0B;
    --ml-error:       #EF4444;
    --ml-radius:      14px;
    --ml-radius-sm:   8px;
    --ml-radius-xs:   6px;
    --ml-shadow:      0 8px 32px rgba(11,46,79,0.10);
    --ml-shadow-sm:   0 2px 12px rgba(11,46,79,0.06);
    --ml-transition:  all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --ml-font:        'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ================================================
   BASE WIDGET
   ================================================ */
.mindlink-widget {
    font-family: var(--ml-font);
    max-width: 840px;
    margin: 32px auto;
    border-radius: var(--ml-radius);
    box-shadow: var(--ml-shadow);
    overflow: hidden;
    background: var(--ml-bg);
    border: 1px solid var(--ml-border);
    line-height: 1.6;
    color: var(--ml-text);
    position: relative;
}

/* ================================================
   FERPA GATE OVERLAY
   ================================================ */
.mindlink-ferpa-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1000;
    background: rgba(11, 46, 79, 0.60);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.mindlink-ferpa-gate {
    background: var(--ml-bg);
    border-radius: var(--ml-radius);
    max-width: 680px;
    width: 100%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(11,46,79,0.25);
    overflow: hidden;
}

.mindlink-ferpa-header {
    background: linear-gradient(135deg, var(--ml-primary) 0%, #143D66 100%);
    padding: 24px 28px;
    color: #fff;
}

.mindlink-brand-logo-area {
    display: flex;
    align-items: center;
    gap: 14px;
}

.mindlink-brand-icon {
    color: #fff;
    flex-shrink: 0;
}

.mindlink-brand-name {
    display: block;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.mindlink-brand-sub {
    display: block;
    font-size: 13px;
    font-weight: 500;
    opacity: 0.75;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.mindlink-ferpa-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px 28px;
    font-size: 13.5px;
    line-height: 1.7;
    color: var(--ml-text);
}

.mindlink-ferpa-body h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 12px;
    color: var(--ml-primary);
}

.mindlink-ferpa-body h4 {
    font-size: 15px;
    font-weight: 700;
    margin: 20px 0 8px;
    color: var(--ml-primary);
}

.mindlink-ferpa-body p {
    margin: 0 0 10px;
}

.mindlink-ferpa-body ul {
    margin: 0 0 12px;
    padding-left: 20px;
}

.mindlink-ferpa-body ul li {
    margin-bottom: 8px;
}

.mindlink-ferpa-body ul li strong {
    color: var(--ml-primary);
}

.mindlink-ferpa-footer {
    border-top: 1px solid var(--ml-border);
    padding: 20px 28px;
    background: var(--ml-bg-alt);
}

.mindlink-ferpa-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    line-height: 1.5;
    cursor: pointer;
    margin-bottom: 16px;
    color: var(--ml-text);
}

.mindlink-ferpa-checkbox-label input[type="checkbox"] {
    margin-top: 3px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    accent-color: var(--ml-accent);
}

.mindlink-ferpa-actions {
    display: flex;
    gap: 10px;
}

/* ================================================
   BRANDED HEADER
   ================================================ */
.mindlink-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: linear-gradient(135deg, var(--ml-primary) 0%, #143D66 60%, var(--ml-accent) 100%);
    color: #fff;
}

.mindlink-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mindlink-header-icon {
    flex-shrink: 0;
}

.mindlink-header-text {
    display: flex;
    flex-direction: column;
}

.mindlink-logo-text {
    font-size: 19px;
    font-weight: 800;
    letter-spacing: -0.4px;
    line-height: 1.2;
}

.mindlink-logo-sub {
    font-size: 11px;
    font-weight: 500;
    opacity: 0.7;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.mindlink-header-badges {
    display: flex;
    gap: 8px;
    align-items: center;
}

.mindlink-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 0.3px;
}

.mindlink-badge-ferpa {
    background: rgba(16, 185, 129, 0.2);
    color: #A7F3D0;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.mindlink-badge-version {
    background: rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.8);
}

/* ================================================
   TABS
   ================================================ */
.mindlink-tabs {
    display: flex;
    background: var(--ml-bg-alt);
    border-bottom: 1px solid var(--ml-border);
    overflow-x: auto;
}

.mindlink-tab {
    flex: 1;
    padding: 13px 16px;
    border: none;
    background: transparent;
    font-family: var(--ml-font);
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ml-text-light);
    cursor: pointer;
    transition: var(--ml-transition);
    border-bottom: 3px solid transparent;
    white-space: nowrap;
}

.mindlink-tab:hover {
    color: var(--ml-accent);
    background: rgba(27, 152, 212, 0.04);
}

.mindlink-tab.active {
    color: var(--ml-accent);
    border-bottom-color: var(--ml-accent);
    background: var(--ml-bg);
}

.mindlink-tab-content {
    display: none;
    padding: 22px 24px;
}

.mindlink-tab-content.active {
    display: block;
}

/* ================================================
   LANGUAGE BAR
   ================================================ */
.mindlink-lang-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.mindlink-lang-group {
    flex: 1;
    min-width: 140px;
}

.mindlink-lang-group label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--ml-text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.mindlink-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius-sm);
    background: var(--ml-bg);
    font-family: var(--ml-font);
    font-size: 14px;
    color: var(--ml-text);
    cursor: pointer;
    transition: var(--ml-transition);
}

.mindlink-select:focus {
    outline: none;
    border-color: var(--ml-accent);
    box-shadow: 0 0 0 3px rgba(27, 152, 212, 0.12);
}

.mindlink-swap-btn {
    padding: 10px 14px;
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius-sm);
    background: var(--ml-bg);
    font-size: 20px;
    cursor: pointer;
    transition: var(--ml-transition);
    margin-top: 18px;
}

.mindlink-swap-btn:hover {
    background: var(--ml-accent);
    color: #fff;
    border-color: var(--ml-accent);
}

/* ================================================
   ENGINE TOGGLE
   ================================================ */
.mindlink-engine-toggle { margin-bottom: 16px; }

.mindlink-toggle-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
}

.mindlink-toggle-label input[type="checkbox"] { display: none; }

.mindlink-toggle-slider {
    position: relative;
    width: 44px; height: 24px;
    background: #D1D5DB;
    border-radius: 12px;
    transition: var(--ml-transition);
    flex-shrink: 0;
}

.mindlink-toggle-slider::after {
    content: '';
    position: absolute;
    width: 20px; height: 20px;
    background: #fff;
    border-radius: 50%;
    top: 2px; left: 2px;
    transition: var(--ml-transition);
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.mindlink-toggle-label input:checked + .mindlink-toggle-slider {
    background: var(--ml-accent);
}

.mindlink-toggle-label input:checked + .mindlink-toggle-slider::after {
    left: 22px;
}

.mindlink-toggle-text {
    color: var(--ml-text);
    font-weight: 500;
}

/* ================================================
   MESSAGES / THREAD AREA
   ================================================ */
.mindlink-messages,
.mindlink-conv-thread {
    min-height: 250px;
    max-height: 400px;
    overflow-y: auto;
    padding: 16px;
    background: var(--ml-bg-alt);
    border-radius: var(--ml-radius-sm);
    margin-bottom: 16px;
    border: 1px solid var(--ml-border);
}

.mindlink-welcome-msg {
    text-align: center;
    color: var(--ml-text-light);
    padding: 40px 20px;
    font-size: 15px;
}

.mindlink-privacy-reminder {
    font-size: 12px;
    color: var(--ml-accent);
    margin-top: 8px;
}

.mindlink-privacy-reminder-box {
    background: rgba(27, 152, 212, 0.06);
    border: 1px solid rgba(27, 152, 212, 0.15);
    border-radius: var(--ml-radius-sm);
    padding: 10px 14px;
    font-size: 12.5px;
    color: var(--ml-text);
    margin: 12px 0;
    line-height: 1.5;
}

.mindlink-msg {
    margin-bottom: 14px;
    animation: ml-fadeIn 0.3s ease;
}

@keyframes ml-fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.mindlink-msg-original {
    background: var(--ml-bg);
    padding: 12px 16px;
    border-radius: 12px 12px 12px 4px;
    border: 1px solid var(--ml-border);
    font-size: 14px;
    margin-bottom: 6px;
}

.mindlink-msg-translated {
    background: linear-gradient(135deg, rgba(27,152,212,0.07), rgba(0,183,195,0.07));
    padding: 12px 16px;
    border-radius: 4px 12px 12px 12px;
    border: 1px solid rgba(27,152,212,0.12);
    font-size: 14px;
}

.mindlink-msg-meta {
    font-size: 11px;
    color: var(--ml-text-muted);
    margin-top: 4px;
}

.mindlink-msg-speaker-a .mindlink-msg-original { border-left: 3px solid var(--ml-accent); }
.mindlink-msg-speaker-b .mindlink-msg-original { border-left: 3px solid var(--ml-highlight); }

/* ================================================
   INPUT AREA
   ================================================ */
.mindlink-input-area, .mindlink-conv-input-area { margin-bottom: 12px; }

.mindlink-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius-sm);
    font-family: var(--ml-font);
    font-size: 14px;
    resize: vertical;
    transition: var(--ml-transition);
    box-sizing: border-box;
}

.mindlink-textarea:focus {
    outline: none;
    border-color: var(--ml-accent);
    box-shadow: 0 0 0 3px rgba(27, 152, 212, 0.12);
}

.mindlink-input-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    justify-content: flex-end;
}

/* ================================================
   BUTTONS
   ================================================ */
.mindlink-btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--ml-radius-sm);
    font-family: var(--ml-font);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ml-transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.mindlink-btn:disabled { opacity: 0.45; cursor: not-allowed; }

.mindlink-btn-primary {
    background: linear-gradient(135deg, var(--ml-accent), var(--ml-highlight));
    color: #fff;
}

.mindlink-btn-primary:hover:not(:disabled) {
    box-shadow: 0 4px 20px rgba(27, 152, 212, 0.35);
    transform: translateY(-1px);
}

.mindlink-btn-secondary {
    background: var(--ml-bg);
    color: var(--ml-accent);
    border: 1px solid var(--ml-border);
}

.mindlink-btn-secondary:hover:not(:disabled) {
    background: var(--ml-bg-alt);
    border-color: var(--ml-accent);
}

.mindlink-btn-full {
    width: 100%;
    justify-content: center;
    margin-top: 10px;
    padding: 14px 20px;
    font-size: 15px;
}

/* ================================================
   SPEAKER TOGGLE
   ================================================ */
.mindlink-speaker-toggle {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.mindlink-speaker-btn {
    flex: 1;
    padding: 10px;
    border: 2px solid var(--ml-border);
    border-radius: var(--ml-radius-sm);
    background: var(--ml-bg);
    font-family: var(--ml-font);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ml-transition);
}

.mindlink-speaker-btn.active[data-speaker="A"] {
    border-color: var(--ml-accent);
    background: rgba(27, 152, 212, 0.06);
    color: var(--ml-accent);
}

.mindlink-speaker-btn.active[data-speaker="B"] {
    border-color: var(--ml-highlight);
    background: rgba(0, 183, 195, 0.06);
    color: var(--ml-highlight);
}

.mindlink-conv-setup {
    display: flex; gap: 16px; margin-bottom: 16px; flex-wrap: wrap;
}

.mindlink-conv-person { flex: 1; min-width: 200px; }
.mindlink-conv-person label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.mindlink-conv-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ================================================
   UPLOAD ZONE (Transcription)
   ================================================ */
.mindlink-upload-zone {
    border: 2px dashed var(--ml-border);
    border-radius: var(--ml-radius);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--ml-transition);
    background: var(--ml-bg-alt);
    position: relative;
}

.mindlink-upload-zone:hover,
.mindlink-upload-zone.drag-over {
    border-color: var(--ml-accent);
    background: rgba(27, 152, 212, 0.03);
}

.mindlink-upload-icon { font-size: 48px; margin-bottom: 12px; }
.mindlink-upload-title { font-size: 18px; font-weight: 700; margin: 0 0 8px; }
.mindlink-upload-subtitle { font-size: 14px; color: var(--ml-text-light); margin: 0; }
.mindlink-upload-subtitle small { font-size: 12px; opacity: 0.8; }

.mindlink-file-input {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer;
}

/* File Info */
.mindlink-file-info { margin: 16px 0; }

.mindlink-file-details {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px;
    background: var(--ml-bg-alt);
    border-radius: var(--ml-radius-sm);
    border: 1px solid var(--ml-border);
}

.mindlink-file-icon { font-size: 28px; }
.mindlink-file-name { font-weight: 600; font-size: 14px; margin: 0; }
.mindlink-file-size { font-size: 12px; color: var(--ml-text-light); margin: 2px 0 0; }

.mindlink-file-remove {
    margin-left: auto; background: none; border: none; font-size: 18px;
    cursor: pointer; color: var(--ml-text-light); padding: 4px 8px;
    border-radius: 4px; transition: var(--ml-transition);
}

.mindlink-file-remove:hover { background: var(--ml-error); color: #fff; }

/* Transcription Options */
.mindlink-transcribe-options {
    display: flex; align-items: center; gap: 12px; margin: 16px 0; flex-wrap: wrap;
}

.mindlink-transcribe-options .mindlink-select { width: auto; min-width: 180px; }

/* ================================================
   PROGRESS BAR
   ================================================ */
.mindlink-progress { margin: 20px 0; text-align: center; }

.mindlink-progress-bar {
    width: 100%; height: 6px; background: var(--ml-border);
    border-radius: 3px; overflow: hidden; margin-bottom: 10px;
}

.mindlink-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--ml-accent), var(--ml-highlight));
    border-radius: 3px; width: 0%;
    transition: width 0.5s ease;
    animation: ml-pulse 2s ease-in-out infinite;
}

@keyframes ml-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.mindlink-progress-text { font-size: 14px; color: var(--ml-text-light); margin: 0; }

/* ================================================
   TRANSCRIPTION RESULTS
   ================================================ */
.mindlink-transcription-results { margin-top: 20px; }
.mindlink-results-title { font-size: 18px; font-weight: 700; margin: 0 0 12px; }

.mindlink-results-meta {
    display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; font-size: 13px;
}

.mindlink-meta-item {
    background: var(--ml-bg-alt); padding: 5px 12px; border-radius: 20px;
    border: 1px solid var(--ml-border); color: var(--ml-text-light);
}

.mindlink-meta-item strong { color: var(--ml-text); }

.mindlink-result-section { margin-bottom: 16px; }

.mindlink-result-header {
    display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px;
}

.mindlink-result-header h4 { margin: 0; font-size: 15px; font-weight: 600; }

.mindlink-copy-btn {
    background: none; border: 1px solid var(--ml-border); border-radius: var(--ml-radius-xs);
    padding: 4px 10px; cursor: pointer; font-size: 14px; transition: var(--ml-transition);
}

.mindlink-copy-btn:hover { background: var(--ml-accent); color: #fff; border-color: var(--ml-accent); }

.mindlink-result-text {
    background: var(--ml-bg-alt); padding: 16px; border-radius: var(--ml-radius-sm);
    border: 1px solid var(--ml-border); font-size: 14px; line-height: 1.7;
    white-space: pre-wrap; word-wrap: break-word; max-height: 300px; overflow-y: auto;
}

.mindlink-toggle-segments-btn {
    background: none; border: 1px solid var(--ml-border); border-radius: var(--ml-radius-xs);
    padding: 4px 12px; cursor: pointer; font-size: 13px; transition: var(--ml-transition);
}

.mindlink-segments-list { max-height: 300px; overflow-y: auto; }

.mindlink-segment {
    display: flex; gap: 12px; padding: 8px 12px; border-bottom: 1px solid var(--ml-border); font-size: 13px;
}

.mindlink-segment:last-child { border-bottom: none; }

.mindlink-segment-time {
    color: var(--ml-accent); font-weight: 600; font-family: 'Courier New', monospace;
    white-space: nowrap; min-width: 110px;
}

.mindlink-segment-text { flex: 1; }

.mindlink-result-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

/* ================================================
   BRANDED FOOTER
   ================================================ */
.mindlink-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    background: var(--ml-primary);
    color: rgba(255,255,255,0.8);
    font-size: 11.5px;
    flex-wrap: wrap;
    gap: 8px;
}

.mindlink-footer-left { }

.mindlink-footer-brand { color: rgba(255,255,255,0.7); }
.mindlink-footer-brand strong { color: #fff; font-weight: 700; }

.mindlink-footer-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.mindlink-footer-badge {
    background: rgba(255,255,255,0.08);
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: rgba(255,255,255,0.8);
}

.mindlink-footer-sep {
    color: rgba(255,255,255,0.25);
    margin: 0 2px;
}

/* ================================================
   LOADING / ERROR
   ================================================ */
.mindlink-loading {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--ml-text-light); font-size: 14px;
}

.mindlink-spinner {
    width: 20px; height: 20px;
    border: 3px solid var(--ml-border);
    border-top-color: var(--ml-accent);
    border-radius: 50%;
    animation: ml-spin 0.8s linear infinite;
}

@keyframes ml-spin { to { transform: rotate(360deg); } }

.mindlink-error-msg {
    background: rgba(239, 68, 68, 0.06);
    border: 1px solid rgba(239, 68, 68, 0.15);
    color: var(--ml-error);
    padding: 10px 16px;
    border-radius: var(--ml-radius-sm);
    font-size: 14px;
    margin: 8px 0;
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 640px) {
    .mindlink-widget { margin: 12px; border-radius: 10px; }
    .mindlink-header { padding: 12px 16px; }
    .mindlink-logo-text { font-size: 16px; }
    .mindlink-tab-content { padding: 16px; }
    .mindlink-tab { padding: 10px 8px; font-size: 12px; }
    .mindlink-lang-bar { flex-direction: column; }
    .mindlink-swap-btn { margin-top: 0; align-self: center; transform: rotate(90deg); }
    .mindlink-conv-setup { flex-direction: column; }
    .mindlink-input-actions { flex-direction: column; }
    .mindlink-btn-full, .mindlink-input-actions .mindlink-btn { width: 100%; justify-content: center; }
    .mindlink-footer { flex-direction: column; text-align: center; }
    .mindlink-ferpa-overlay { padding: 10px; }
    .mindlink-ferpa-gate { max-height: 92vh; }
    .mindlink-ferpa-body { padding: 16px 20px; font-size: 12.5px; }
    .mindlink-header-badges { flex-wrap: wrap; }
}